//
//  XYViewController.h
//  Calculator
//
//  Created by Xia Yong on 12-12-5.
//  Copyright (c) 2012年 Xia Yong. All rights reserved.
//

#import <UIKit/UIKit.h>
#import "XYCalculatorModel.h"

@interface XYViewController : UIViewController

@property (weak, nonatomic) IBOutlet UILabel *screen;

@property (strong, nonatomic) XYCalculatorModel *calculatorData;

- (IBAction)typeTheNumber:(UIButton *)sender;

- (IBAction)typeTheSign:(UIButton *)sender;

- (IBAction)typeTheEnter:(UIButton *)sender;

@end
